Please use PW method.
a) Use the Repeatability Assumption to compare between three alternatives X, Y, and Z at (MARR = 18% per year).
Project
A
B
C
Investment cost
$90,000
$50,000
$35,000
Production rate per year
20,000
24,000
18,000
Price per unit
$6
$2.8
$4
Annual expenses
$6,000
$5,000
$4,000
Salvage value
$10,000
$8,100
Useful life (years)
2
3
6